Improvement in nut-machines



GEORGE HL FULLER.

impro-vement in Nut-Machines, No. H4,664. @l Parntdmay 9,187+.

UNITED STATES PATENT OFFICE.

GEORGE H. FULLER, OF UNIONVILLE, ASSIGNOR TO HIMSELF, AUGUSTUS J. FULLER, OF SAME PLACE,`AND BOSWELL A. NEALE AND AMZI P. PLANT,'OF SOUTHINGTON, CONNECTICUT.

IMPROVEMENT IN NUT-MACHINES.

Specification forming part of Letters Patent No. 114,664, dated May 9, 1871.

To all whom it may concern:

Be it known that I, GEORGE H. FULLER, of Unionville, in the county of Hartford and State of Connecticut, have invented a new Improvement in Machine for Making Nuts; and

I do hereby declare the following, when taken in connection with the accompanying drawing and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawing constitutes part of this specification, and represents, in

Figure l, a top view; Fig. 2, a central section on line a: w; Fig. 3, a transverse section; and in Fig. 4, a detached view.

This invention relates to an improvement in that class of machines for making nuts in which the sides of the nut are finished by a succession of blows, and especially in the machine patented to me February 16, 1869, and the invention consists in the combination of mechanism, as more fully hereafter described, for cutting the blank from the bar, crowning the face, and hammering` the sides.

A is the bed-plate, upon which the operative mechanism is placed; B, the drivin g-shaft, arranged to revolve freely in bearings B1 by Ztheapplication of power to the pulley B2 or otherwise.

The bar, having been heated, is introduced through Ythe mouth C into the guide c in front of the slide D, which carries a punch, D1, (see Fig. 2,) the size and shape of the nut to be formed. This slide is operated by a cam, D2, on the driving-shaft, through the lever D3, `to move longitudinally in the machine and across the guide c, where, striking the heated bar, as denoted in Fig. 4, the bar is pressed against the edge of the block or cutter D4, taking from the bar a blank from which to form the nut, and carrying it to and forcing it against the concave face of the crowner D5, as seen in Fig. 2, the face of the crowner being of the form desired for the face of the nut.

The crowner D5 has arranged in its center a spring-spindle, d, to force the blank from the crowner when the punch D is removed. So soon as the blank has been thus acted upon the punch withdraws. At the same time the vertical slideE, operated by the cam El` through the lever E2, descends, its lower end being provided with a hammer, c.

the other edges of the nut. After thus hammering, the nut is held in position until the punch n, ixed in the slide N, is advanced by the action of the cam N1, through the lever N 2,

piercing the nut, the metal punched from the nut passing out through the aperture t'. This done and the punch n withdrawn, the anvil a is withdrawn from below the nut by the action of the cam P through the lever P1(de noted in broken lines, Fig. 1) and the slide P3. (See Fig. 3.) The nut then drops onto a slide or bar, R, and in that position is again struck upon its face by a slide or hammer, S, actuated by a cam, S, through a lever, S2, (see Figs. l and 2,) which finishes the nut. Then the holder or bar R is withdrawn by a projection,' t, on the side ofthe cam F acting upon a lever,l T, in connection with the said slide R, as seen in Figs. l and 2. At this time the parts have returned to receive anew blank from the bar for the formation of the second nut.

I claim as my inventionl. In combination with the punch DI and crowner D5, the hammers e f and the movable anvil a, when arranged to operate upon the nut in the manner described, after it has been removed from the crowner, substantially as set forth.

2. In combination with the subject-matter of the first clause of claim, the punch n, oper- 'ating to pierce the nut, as set forth.

3. In combination with the subject-matter of the second clause of claim, the finishinghammer S and the slide R, as and for the purpose set forth. l

GEORGE H. FULLER.

Witnesses:

A. J. TIBBI'rs, J. H. SHUMWAY. 

